Home / 47,736.12-71,604-11,712.72

Finding the Fourth Proportional to 47,736.12, 71,604 and 11,712.72

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Solution

The fourth proportional to 47,736.12, 71,604 and 11,712.72 is: 17,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,736.12 : 71,604 = 11,712.72 : x
  2. Step 2: Convert to fraction form
    47,736.12/71,604 = 11,712.72/x
  3. Step 3: Cross multiply
    47,736.12x = 71,604 × 11,712.72
  4. Step 4: Simplify right side
    47,736.12x = 838,677,602.88
  5. Step 5: Solve for x
    x = 838,677,602.88/47,736.12
  6. Step 6: Final answer
    x = 17,569.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.